New Philadelphia Phillies manager Gabe Kapler’s first week on the job just went from bad to worse. Major League Baseball is expected to issue a formal warning to the Phillies following Kapler’s bullpen screw-up during Saturday’s game, according to MLB.com.

Kapler managed to get himself into hot water with the league following an incident in which he signaled for a pitching change without having any relievers warming up in the bullpen. Kapler called for reliever Hoby Milner, who wasn’t ready to enter the game.

In order to prevent Milner from injuring himself, umpire Jerry Layne allowed him to throw a few warmup pitches, but not as many as usual. MLB is still in the process of reviewing the video, but agreed with Layne’s ruling in this situation.